{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40129","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.170Z","datePublished":"2025-11-12T10:23:21.327Z","dateUpdated":"2026-05-11T21:43:18.825Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:43:18.825Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsunrpc: fix null pointer dereference on zero-length checksum\n\nIn xdr_stream_decode_opaque_auth(), zero-length checksum.len causes\nchecksum.data to be set to NULL. This triggers a NPD when accessing\nchecksum.data in gss_krb5_verify_mic_v2(). This patch ensures that\nthe value of checksum.len is not less than XDR_UNIT."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sunrpc/auth_gss/svcauth_gss.c"],"versions":[{"version":"0653028e8f1c97fec30710813a001ad8a2ec34f4","lessThan":"81cec07d303186d0d8c623ef8b5ecd3b81e94cf6","status":"affected","versionType":"git"},{"version":"0653028e8f1c97fec30710813a001ad8a2ec34f4","lessThan":"affc03d44921f493deaae1d33151e3067a6f9f8f","status":"affected","versionType":"git"},{"version":"0653028e8f1c97fec30710813a001ad8a2ec34f4","lessThan":"ab9a70cd2386a0d70c164b0905dd66bc9af52e77","status":"affected","versionType":"git"},{"version":"0653028e8f1c97fec30710813a001ad8a2ec34f4","lessThan":"6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sunrpc/auth_gss/svcauth_gss.c"],"versions":[{"version":"6.3","status":"affected"},{"version":"0","lessThan":"6.3","status":"unaffected","versionType":"semver"},{"version":"6.6.112","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.53","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.17.3","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/81cec07d303186d0d8c623ef8b5ecd3b81e94cf6"},{"url":"https://git.kernel.org/stable/c/affc03d44921f493deaae1d33151e3067a6f9f8f"},{"url":"https://git.kernel.org/stable/c/ab9a70cd2386a0d70c164b0905dd66bc9af52e77"},{"url":"https://git.kernel.org/stable/c/6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42"}],"title":"sunrpc: fix null pointer dereference on zero-length checksum","x_generator":{"engine":"bippy-1.2.0"}}}}